Website Uploading Problem

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ASP.NET

I Build a website by using asp.net and c# in filesystem

now i uploaded it in the web

when i used to run that page,it shows an error like this

Server Error in '/' Application.

Configuration Error

Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. 

Parser Error Message: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level.  This error can be caused by a virtual directory not being configured as an application in IIS.

Source Error: 


Line 24:             ASP.NET to identify an incoming user. 
Line 25:         -->
Line 26: 	<authentication mode="Windows" />
Line 27: 		<!--
Line 28:             The <customErrors> section enables configuration 

Source File: C:\Domains\manjummelprovince.org\wwwroot\cmsnew\testwebsite\web.config    Line: 26 

Version Information: Microsoft .NET Framework Version:2.0.50727.3607; ASP.NET Version:2.0.50727.3082

what can i do to remove this error

i also converted it as iis application,and then it can run via local host,bt when uploading into web,it shows same error


Kindly help me

Kishore R-->